Math, asked by sandhyadarshini06, 1 year ago

in given fig. angle ODC perpendicular to angle OBA .angle BOC =125 ,angle CDO =70 find angle OAB​

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Answered by Edwinabraham
1
the answer is 55 degree
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Answered by Anonymous
4

\red{\color{white}{\fcolorbox{cyan}{black}{Answer:-}}}

  \angle DOC+ \angle BOC=180\degree\\ \angle DOC = 180 \degree  -  125\degree \\ \red{\angle DOC = 55\degree} \:  \:  \:  ~~ \: \: (linear \: pair) \\   \\  \angle DCO =180 \degree - (70\degree + 55\degree) \\ \angle DCO =180\degree - 125\degree \\  \red{\angle  DCO =55\degree} \  \\  \\ \ Since, \:  \triangle ODC \sim \: \triangle OBA \\ \red{\angle OBA  = \angle DCO = 55 \degree}

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